When someone is being a fucking idiot
by Mobber2 January 19, 2017
Get the DUMB FUCKmug. by nintendojo August 14, 2018
Get the Selective Dumbnessmug. by theepineapple32 April 14, 2019
Get the dumb fuckmug. A dumb ass is someone who does or says something retarded.Sometimes people are dumb asses and do stupid shit.
by Kakyoin the milf hunter September 6, 2020
Get the Dumb assmug. 1) a person that is foolish and or acting foolishly
2) someone who has pissed you off by doing something ridiculous that has made you mad/angry
3) stupid; retarded
2) someone who has pissed you off by doing something ridiculous that has made you mad/angry
3) stupid; retarded
by Yvng_Lyrical_ September 17, 2014
Get the Dumb Fuckmug. 
